Merge lp:~simon-d-bull/htd/3.1.fix-1036385 into lp:htd/3.1

[Simon Bull]

Switched type check and validation.

[Andrew Hayzen (ahayzen)]

Thanks Simon :)

review: Approve

=== modified file 'htd31/_objects/attribute.py'
--- htd31/_objects/attribute.py	2012-08-13 20:06:11 +0000
+++ htd31/_objects/attribute.py	2012-08-15 20:13:25 +0000
@@ -99,13 +99,13 @@
         if name is None:
             self._name = None
             return
-
+       
+        if isinstance(name, str) is False:
+            raise ValueError("Attribute name must be str type.")
+        
         if "." in name:
             raise ValueError("Attribute name must not contain '.'")
 
-        if isinstance(name, str) is False:
-            raise ValueError("Attribute name must be str type.")
-
         self._name = name
 
     @property